In flight adjustable propeller

[stevron]

I am looking for some information and any comments on fitting a inflight adjustable prop to a Lycoming O235.

 

Things like weight and reliability

 

 

[facthunter]

At the HP (115) of that engine I don't think it would make sense weight and cost wise. It already swings a fair diameter prop. Unless you need to cruise at above say 120K the rewards are minimal and you would need a fairly sleek plane to do that. speed. Nev

 

 

[408059]

My response is probably a little tangential to your question but I had an opportunity to compare a Prince P tip propeller against an efficient wood fixed pitch propeller on my Varieze. The Varieze uses a Continental O200 engine producing 105 hp as set up. I operated off a short strip, 3,000' above sea level, with power lines at the Northern end, that was challenging during summer when air density was low. An in-flight adjustable propeller was out of the question because of CofG issues. The Prince P tip is a fixed pitch composite propeller. The manufacturer claims it changes pitch by up to 4 inches between take off and cruise because of the tip and shape of the propeller. The Prince propeller, which had a slightly finer pitch to the wood propeller, certainly got me off the ground quicker and climb was good compared to the wood propeller. In cruise the Prince P propeller matched the wood propeller. The Prince P tip and wood propellers both came with the aircraft so I wasn't emotionally invested in either. I simply wanted the best outcome. Stevron, an option perhaps?

 

 

[stevron]

Thanks , I am not aware of the Prince P propeller